Information acquisition system

Abstract

An information acquisition system includes a first input acquisition unit that acquires masses of the attachment and the suspended cargo as first input, a second input acquisition unit that acquires information about a posture of the attachment as second input, a position estimation unit that estimates the position of at least one of the attachment and the suspended cargo, based on the first input and the second input, and an information derivation unit that derives information about the possibility of interference between the external object and at least one of the attachment and the suspended cargo, based on the position of at least one of the attachment and the suspended cargo estimated by the position estimation unit.

The invention claimed is: 
     
         1 . A construction planning simulation system for construction using a crane for acquiring information about possibility of interference between an external object and an attachment of the crane and a suspended cargo suspended by the attachment, the crane having a lower travel body, an upper turning body, and the attachment that is supported by the upper turning body for suspending the cargo and that extends outward so as to allow derricking, comprising:
 at least one processor comprising circuitry configured to:
 receive first data, as a first input to the at least one processor, the first data including masses of the attachment and the suspended cargo; 
 receive second data, as a second input to the at least one processor, the second data including information about a posture of the attachment as second input; 
 model, via the circuitry, a 3 dimensional model of the crane based on the first input and the second input and estimate a position of the attachment and the suspended cargo based on the 3 dimensional model of the crane; and 
 compute, via the circuitry, the possibility of interference between the external object and the attachment and the suspended cargo, based on the estimated position of the attachment and the suspended cargo, 
   the information about the posture includes a derricking angle of the attachment, and   the position of the attachment and the suspended cargo is estimated based on the derricking angle,   wherein the at least one processor is configured to control a movement of the crane to follow a carrying route of the suspended cargo from the 3 dimensional model generated by the circuitry to prevent the suspended cargo from contacting the external object during the movement.   
     
     
         2 . The construction planning simulation system according to  claim 1 , wherein the at least one processor is configured to estimate a deformation amount of the upper turning body and a deformation amount of the attachment based on the first input and the second input, and estimate the position of the attachment and the suspended cargo that is determined depending on the deformation amounts. 
     
     
         3 . The construction planning simulation system according to  claim 1 , wherein
 the information about the posture includes at least one of lifting speed at time of lifting the suspended cargo and lowering speed at time of lowering the suspended cargo, and   the position of the attachment and the suspended cargo is estimated by the at least one processor based on at least one of the lifting speed and the lowering speed.   
     
     
         4 . A construction planning simulation system for construction using a crane for acquiring information about possibility of interference between an external object and an attachment of the crane and a suspended cargo suspended by the attachment, the crane having a lower travel body, an upper turning body, and the attachment that is supported by the upper turning body for suspending the cargo and that extends outward so as to allow derricking, comprising:
 at least one processor comprising circuitry configured to:
 receive first data, as a first input to the at least one processor, the first data including masses of the attachment and the suspended cargo; 
 receive second data, as a second input to the at least one processor, the second data including information about a change in posture of the attachment over prescribed time as second input; 
 model, via the circuitry, a 3 dimensional model of the crane based on the first input and the second input and estimate a position of the attachment and the suspended cargo for the prescribed time, based on the 3 dimensional model of the crane; and 
 compute, via the circuitry, the possibility of interference between the external object and the attachment and the suspended cargo, based on the estimated position of the attachment and the suspended cargo, 
   the information about the posture includes a derricking angle of the attachment, and   the position of the attachment and the suspended cargo is estimated based on the derricking angle,   wherein the at least one processor is configured to control a movement of the crane to follow a carrying route of the suspended cargo from the 3 dimensional model generated by the circuitry to prevent the suspended cargo from contacting the external object during the movement.   
     
     
         5 . The construction planning simulation system according to  claim 4 , wherein the at least one processor is configured to estimate a deformation amount of the upper turning body and a deformation amount of the attachment over the prescribed time, based on the first input and the second input, and estimate the position of the attachment and the suspended cargo that is determined depending on the deformation amounts. 
     
     
         6 . The construction planning simulation system according to  claim 4 , wherein
 the information about the change in posture includes acceleration during the derricking of the attachment, and   the position of the attachment and the suspended cargo is estimated based on the acceleration during the derricking.   
     
     
         7 . The construction planning simulation system according to  claim 4 , wherein
 the information about the change in posture includes acceleration during turning of the attachment, and   the position is estimated based on the acceleration during the turning.   
     
     
         8 . The construction planning simulation system according to  claim 4 , wherein
 the information about the change in posture includes at least one of lifting speed at time of lifting the suspended cargo and lowering speed at time of lowering the suspended cargo, and   the position is estimated based on the lifting speed at the time of lifting or the lowering speed at the time of lowering.